Filing and indexing equipment



J. T QUIGLEY.

FI LING AND INDEXING EQUiPMENT APPLICATION men NOV. 2, 1918,

Patented July 19, 1921.

2 SHEETS-SHEET Z.

\ Ev J v v 9 l8 /8 7; l8 /8 John T illustrated in Fig. 5, in which Ihave shown the sheet partially withdrawn from its holder. Preferably,the slot 16 is provided with rounded or beveled ends, forming divergingwalls 19. constituting an entrance to facilitate the introduction of thesheet. The latter may be either single or double, but in the presentexample, I have shown a folded sheet with the fold inserted in theholder, as clearly shown in'Fig. l.

Preferably the tongues 17 are formed in pairs, with the tongues of eachpair rather closely adjacent to each other, as shown in Figs. 2 and 3.and with one pair adjacent one corner of the sheet, and another adjacentthe other corner. This arrangement is preferred, as it gives amplestability and provides forthe security of the interlocking connectionbetween the sheet and sheetholder. It should be observed by reference toFig. l that where tongues project from opposite sides of the sheet, thelatter in effect has a thickness within the sheet-holder equivalent tothree times the thickness of that portionof the sheet which is outsidethe sheet-holder. It follows that I have thus 'provided an interlockingconnection which possesses great strength and durability, it

being impossible to detach the sheet from its holder without firstremoving the latter from the mounting.-

1 Having thus described one embodiment of my invention what I claim anddesire by Letters Patent'to secure is:

1. In a device of the character described,

the combination of a tubular sheet-holder provided with a longitudinalslot, and a sheet having a marginal portion extending through said slotto the interior of said sheet-holder where it is irovided withprojections extending laterally from both faces thereof and locking saidsheet against movement transversely out of said slot while permittingthe same to slide longitudinally therein.

2. In a device of the character described,

the combinationof a tubular sheet-holder provided with a longitudinalslot, and a sheet disposed in a plane substantially normal to a planecontaining both edges of said slot, said sheet having a marginal portionextending through said slot to the interior of said sheet-holder whereit is provided with means prdjecting laterally from said sheet adjacentsaid slot and locking said sheet against movement transversely out ofsaid slot while permitting the same to slide longitudinally therein.

$3. In a device of the character described, the combination of a tubularsheet-holder provided with a longitudinal slot, and a sheet received insaid slot and having its inner edge opposed to the internal surface ofsaid sheet-holder along a line opposite said slot and having meansprojecting laterally from said sheet within said slicetholdcr at asubstantial distance from such edge.

4:. In a device of the character described. the combination of a tubularsheet-holder provided with a longitur'linal slot, and a sheet receivedin said slot and having projections extending from opposite lacesthereof within said sheet-holder.

5. In a device of the character described, the combination of a tubularsheetdiolder provided with a longitudinal slot. and a. sheet received insaid slot and provided with tongues extending in opposite directionswithin said sheet-holder.

6. In a device of the character described, the combination of a tubularsheet-holder provided with a longitudinal slot, and a sheet received insaid slot and provided with one ormore tongues relatively narrower thansaid sheet and. projecting laterally therefrom within said sheet-holder.

7. In a device of the character described. the combination of atubularsheet-holder provided with a longitudinal slot and a sheet received insaid slot and provided with a plurality of integral tongues projectinglaterally from opposite faces thereof within said sheet-holder.

8. In a device of the character described, the combination of a tubularsheet-holder provided with a longitudinal slot and a sheet received insaid slot and provided with an integral tongue formed by punching anopening, said tongue. projecting laterally from said sheet within saidsheet-l1older.

9. In a device of the character described, the combination of a tubularsheet-holder provided with a longitudinal slot symmetrically disposedwith reference to the'crosssection of said sheet-holder, and a sheethaving a marginal portion extending through said slot to the interior ofsaid sheet-holder where it is provided with means projecting laterallyfrom said sheet and locking said sheet against transverse removal fromsaid slot while permitting longitudinal movement therein.

10 In a device of the character described, the combination of a tubularsheet-holder providedwith a longitudinal slot, and a. sheet having amarginal portion received in said slot and provided intcriorly of saidsheet-holder with locking means whose thrust is exerted against theinternal margin of said slot in a direction substantially normal to aplane containing the edges of said slot and in a direction substantiallyparallel with the plane of the body of said sheet when a pull on thelatter is exerted in an outward direction in its own plane.

In testin'iony whereof I have signed my name to this specification.

JOHN T. QUIGLEY.

